CVE-2026-77148criticalCWE-119CWE-121

CVE-2026-77148: critical vulnerability in Comfast CF-N1-S

Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow

Published

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.4epss 0.8%
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was found in Comfast CF-N1-S 2.6.0.1. This impacts the function sub_44B50C of the file /cgi-bin/mbox-config?method=SET&section=ptest_channel of the component Web Management. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Affected products
Comfast · CF-N1-S
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.